/*
 * 注释
 */

        .section    .vectors, "ax"
        .align      4
        .globl      _vectors
_vectors:
        .long       __main_stack_end__
        .long       Reset_Handler
        .long       NMI_Handler
        .long       HardFault_Handler

        .text

        .align      2
        .thumb_func
        .weak       Reset_Handler
Reset_Handler:
         b          _crt0_entry

        .thumb_func
        .weak       NMI_Handler,
        .weak       HardFault_Handler

NMI_Handler:
HardFault_Handler:
         b          _unhandled_exception

        .thumb_func
        .weak       _unhandled_exception
_unhandled_exception:
.stay:
        b           .stay
